| Full text | |
| Author(s): |
Faria, Fabio A.
[1]
;
Pedronette, Daniel C. G.
[2]
;
dos Santos, Jefersson A.
[3]
;
Rocha, Anderson
[1]
;
Torres, Ricardo da S.
[1]
Total Authors: 5
|
| Affiliation: | [1] Univ Estadual Campinas, Inst Comp, BR-13083852 Sao Paulo - Brazil
[2] State Univ Sao Paulo UNESP, Dept Stat Appl Math & Comp, BR-13506900 Sao Paulo - Brazil
[3] Univ Fed Minas Gerais, Dept Comp Sci, BR-31270010 Belo Horizonte, MG - Brazil
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING; v. 7, n. 4, p. 1103-1115, APR 2014. |
| Web of Science Citations: | 9 |
| Abstract | |
In the past few years, segmentation and classification techniques have become a cornerstone of many successful remote sensing algorithms aiming at delineating geographic target objects. One common strategy relies on using multiple complex features to guide the delineation process with the objective of gathering complementary information for improving classification results. However, a persistent problem in this approach is how to combine different and noncorrelated feature descriptors automatically. In this regard, one solution is to combine them through multiple classifier systems (MCSs) in which the diversity of simple/non-complex classifiers is an essential issue in the definition of appropriate strategies for classifier fusion. In this paper, we propose a novel strategy for selecting classifiers (whereby a classifier is taken as a pair of learning method plus image descriptor) to be combined in MCS. In the proposed solution, diversity measures are used to assess the degree of agreement/disagreement between pairs of classifiers and ranked lists are created to sort them according to their diversity score. Thereafter, the classifiers are also sorted according to their performance through different evaluation measures (e. g., kappa and tau indices). In the end, a rank aggregation method is proposed to select the most suitable classifiers based on both the diversity and the effectiveness performance of classifiers. The proposed fusion framework has targeted at coffee crop classification and urban recognition but it is general enough to be used in a variety of other pattern recognition problems. Experimental results demonstrate that the novel strategy yields good results when compared to several baselines while using fewer classifiers and being much more efficient. (AU) | |
| FAPESP's process: | 10/14910-0 - Evidence-Fusion Methods for Multimedia Retrieval and Classification |
| Grantee: | Fabio Augusto Faria |
| Support type: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 13/08645-0 - Re-Ranking and rank aggregation approaches for image retrieval tasks |
| Grantee: | Daniel Carlos Guimarães Pedronette |
| Support type: | Research Grants - Young Investigators Grants |
| FAPESP's process: | 10/05647-4 - Digital forensics: collection, organization, classification and analysis of digital evidences |
| Grantee: | Anderson de Rezende Rocha |
| Support type: | Research Grants - Young Investigators Grants |
| FAPESP's process: | 12/18768-0 - Multiscale Classification By Using Optimum Path-Forest |
| Grantee: | Jefersson Alex dos Santos |
| Support type: | Scholarships in Brazil - Post-Doctorate |